Q: What are the prime factors of the number 276,808,320?

 A: 2, 3, 5, 83, 193

Why are those the prime factors of the number 276,808,320?

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 276,808,320

276,808,320
Factor Arrows
2138,404,160
Factor Arrows
269,202,080
Factor Arrows
234,601,040
Factor Arrows
217,300,520
Factor Arrows
28,650,260
Factor Arrows
24,325,130
Factor Arrows
22,162,565
Factor Arrows
3720,855
Factor Arrows
3240,285
Factor Arrows
380,095
Factor Arrows
516,019
Factor Arrows
83193

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, 3, 5, 83, 193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 5 x 83 x 193 = 276,808,320

This can also be written as 27 x 33 x 51 x 831 x 1931 = 276,808,320

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


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