78 is not prime.
No even number (except 2) is prime.
Remember the definition. A Prime number is exactly divisible only by itself and 1.
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The prime factorization of 78 is 2*3*13
The factors of 78 are 1, 2, 3, 6, 13, 26, 39, and 78. The prime factors of 78 are 2, 3 and 13. The prime factorization of 78 is 2*3*13
78 as a product of its prime factors is: 2 x 3 x 13 = 78
How about: 73+5 = 78
47 is a prime number.