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Q: Is 142 a prime number

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142 is composite.

composite.

142 is composite. All whole numbers ending in two are composite except the number two itself, which is prime.

In order to get three prime numbers to add up to an even number, one of them will have to be even. The only even prime number is 2.144 - 2 = 142.You need to find 2 prime numbers that can add up to 142. 71 is prime and added to itself will be 142, but that won't give you three different prime numbers.Use a list of prime numbers and subtract each prime that is greater than 71 (fewer than primes less than 71) from 142 to see if the difference is another prime:142 - 73 = 69 (not prime)142 - 79 = 63 (not prime)142 - 83 = 59 (prime)142 - 89 = 53 (prime)142 - 97 = 45 (not prime)142 - 101 = 41 (prime)142 - 103 = 39 (not prime)142 - 107 = 35 (not prime)142 - 109 = 33 (not prime)142 - 113 = 29 (prime)142 - 127 = 15 (not prime)142 - 131 = 11 (prime)142 - 137 = 5 (prime)142 - 139 = 3 (prime)You end up with 7 sets of 3 prime numbers that add up to 144:2, 59, 832, 53, 892, 41, 1012, 29, 1132, 11, 1312, 5, 1372, 3, 139

No, 142 is not prime.

142 is a composite number; it has factors other than 1 and itself.The four factors of 142 are 1, 2, 71, 142.The factor pairs of 142 are 1 x 142 and 2 x 71.The proper factors of 142 are 1, 2, and 71 or,if the definition you are using excludes 1, they are 2 and 71.The prime factors of 142 are 2 and 71The distinct prime factors of 142 are also 2 and 71 since there is no repetition of factors.The prime factorization of 142 is 2 x 71.

2 * 71 = 142 both 2 and 71 are prime

1, 2, 71, 142 2 and 71 are prime.

142 = 2 * 71

Start with the prime factorization. 2 x 71 = 142 Any number with two distinct prime factors has four factors in total. Since it's automatic that one and the number itself are included, you have them all. 1, 2, 71, 142

142 = 2 x 71

Composite. It is an even number after all, so the factor 2 is a given.

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