Q: What are the prime factors of the number 76,238,200?

 A: 2, 5, 17, 1319

Why are those the prime factors of the number 76,238,200?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 76,238,200

76,238,200
Factor Arrows
238,119,100
Factor Arrows
219,059,550
Factor Arrows
29,529,775
Factor Arrows
51,905,955
Factor Arrows
5381,191
Factor Arrows
1722,423
Factor Arrows
171,319

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 17, 1319

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 17 x 17 x 1,319 = 76,238,200

This can also be written as 23 x 52 x 172 x 1,3191 = 76,238,200

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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