Is 777 a Prime Number?

Is 777 a prime number? How do you know that 777 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 777? Is 777 a prime number? "No, 777 is not a prime number." Since 777 has more than 2 factors i.e. 1, 3, 7, 21, 37, 111, 259, 777, it is a composite number. Let's study this in detail.

• Is 777 a prime number? - No
• Is 777 a composite number? - Yes
• Is 777 a perfect square? - No
• Factors of 777 - 1, 3, 7, 21, 37, 111, 259, 777
• Prime Factors of 777 - 3, 7, 37

Is 777 a Prime Number?

No, 777 is not a prime number. The number 777 is divisible by 1, 3, 7, 21, 37, 111, 259, 777. For a number to be classified as a prime number, it should have exactly two factors. Since 777 has more than two factors, i.e. 1, 3, 7, 21, 37, 111, 259, 777, it is not a prime number.

Why is 777 not a Prime Number?

To understand whether 777 is composite or prime, it is important to find its factors.

Factors of 777: 1, 3, 7, 21, 37, 111, 259, 777

Since 777 has more than 2 factors, we can say that 777 is not a prime number.

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Is 777 a Composite Number?

Yes, since 777 has more than two factors i.e. 1, 3, 7, 21, 37, 111, 259, 777. In other words, 777 is a composite number because 777 has more than 2 factors.

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Fun Facts:

• 2 is the smallest prime number.
• All primes except 2 are odd.
• Prime numbers greater than 5 can be represented in the form of either 6n + 1 or 6n - 1. Example - 71 is a prime number and it can be written as 71 = 6 × 12 - 1

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