To find all the divisors of the number 338,403,042:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 338,403,042:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
338,403,042 = 2 × 33 × 241 × 26,003
338,403,042 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
Without actually finding the factors
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (3 + 1) × (1 + 1) × (1 + 1) = 2 × 4 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 338,403,042
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 3
2 =
18
composite factor = 3
3 =
27
composite factor = 2 × 3
3 =
54
prime factor =
241
composite factor = 2 × 241 =
482
composite factor = 3 × 241 =
723
composite factor = 2 × 3 × 241 =
1,446
composite factor = 3
2 × 241 =
2,169
composite factor = 2 × 3
2 × 241 =
4,338
composite factor = 3
3 × 241 =
6,507
composite factor = 2 × 3
3 × 241 =
13,014
This list continues below...
... This list continues from above
prime factor =
26,003
composite factor = 2 × 26,003 =
52,006
composite factor = 3 × 26,003 =
78,009
composite factor = 2 × 3 × 26,003 =
156,018
composite factor = 3
2 × 26,003 =
234,027
composite factor = 2 × 3
2 × 26,003 =
468,054
composite factor = 3
3 × 26,003 =
702,081
composite factor = 2 × 3
3 × 26,003 =
1,404,162
composite factor = 241 × 26,003 =
6,266,723
composite factor = 2 × 241 × 26,003 =
12,533,446
composite factor = 3 × 241 × 26,003 =
18,800,169
composite factor = 2 × 3 × 241 × 26,003 =
37,600,338
composite factor = 3
2 × 241 × 26,003 =
56,400,507
composite factor = 2 × 3
2 × 241 × 26,003 =
112,801,014
composite factor = 3
3 × 241 × 26,003 =
169,201,521
composite factor = 2 × 3
3 × 241 × 26,003 =
338,403,042
32 factors (divisors)
What times what is 338,403,042?
What number multiplied by what number equals 338,403,042?
All the combinations of any two natural numbers whose product equals 338,403,042.
1 × 338,403,042 = 338,403,042
2 × 169,201,521 = 338,403,042
3 × 112,801,014 = 338,403,042
6 × 56,400,507 = 338,403,042
9 × 37,600,338 = 338,403,042
18 × 18,800,169 = 338,403,042
27 × 12,533,446 = 338,403,042
54 × 6,266,723 = 338,403,042
241 × 1,404,162 = 338,403,042
482 × 702,081 = 338,403,042
723 × 468,054 = 338,403,042
1,446 × 234,027 = 338,403,042
2,169 × 156,018 = 338,403,042
4,338 × 78,009 = 338,403,042
6,507 × 52,006 = 338,403,042
13,014 × 26,003 = 338,403,042
16 unique multiplications The final answer:
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