Is 625 a Prime Number?

Is 625 a prime number? How do you know that 625 is prime or composite? Let us first understand what makes a number 'prime'. If a number has only 2 factors (1 and the number itself), then it is a prime number. If the number has more than 2 factors, then it is composite. Now, what do you think of 625? Is 625 a prime number? "No, 625 is not a prime number." Since 625 has more than 2 factors i.e. 1, 5, 25, 125, 625, it is a composite number. Let's study this in detail.

• Is 625 a prime number? - No
• Is 625 a composite number? - Yes
• Factors of 625 - 1, 5, 25, 125, 625
• Prime Factors of 625 - 5
• Is 625 a perfect square? - Yes

Is 625 a Prime Number?

No, 625 is not a prime number. The number 625 is divisible by 1, 5, 25, 125, 625. For a number to be classified as a prime number, it should have exactly two factors. Since 625 has more than two factors, i.e. 1, 5, 25, 125, 625, it is not a prime number.

Why is 625 not a Prime Number?

To understand whether 625 is prime or composite, it is important to find its factors.

Factors of 625: 1, 5, 25, 125, 625

Since 625 has more than 2 factors, we can say that 625 is not a prime number.

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Is 625 a Composite Number?

Yes, since 625 has more than two factors i.e. 1, 5, 25, 125, 625. In other words, 625 is a composite number because 625 has more than 2 factors.

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Fun Facts:

• 2 is the smallest prime number.
• Euler discovered a polynomial n² + n + 41 that produces prime numbers for values of n that lie between 0 and 39 inclusive. It can generate 40 prime numbers for 0 <= n <= 39.
• Numbers X and Y are said to be coprime if they have only one common factor that is 1.

☛ Also Check:

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• Is 124 a Prime Number? - No