To find all the divisors of the number 238,602:
- 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 238,602:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
238,602 = 2 × 3 × 7 × 13 × 19 × 23
238,602 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 238,602
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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
prime factor =
7
prime factor =
13
composite factor = 2 × 7 =
14
prime factor =
19
composite factor = 3 × 7 =
21
prime factor =
23
composite factor = 2 × 13 =
26
composite factor = 2 × 19 =
38
composite factor = 3 × 13 =
39
composite factor = 2 × 3 × 7 =
42
composite factor = 2 × 23 =
46
composite factor = 3 × 19 =
57
composite factor = 3 × 23 =
69
composite factor = 2 × 3 × 13 =
78
composite factor = 7 × 13 =
91
composite factor = 2 × 3 × 19 =
114
composite factor = 7 × 19 =
133
composite factor = 2 × 3 × 23 =
138
composite factor = 7 × 23 =
161
composite factor = 2 × 7 × 13 =
182
composite factor = 13 × 19 =
247
composite factor = 2 × 7 × 19 =
266
composite factor = 3 × 7 × 13 =
273
composite factor = 13 × 23 =
299
composite factor = 2 × 7 × 23 =
322
composite factor = 3 × 7 × 19 =
399
composite factor = 19 × 23 =
437
composite factor = 3 × 7 × 23 =
483
This list continues below...
... This list continues from above
composite factor = 2 × 13 × 19 =
494
composite factor = 2 × 3 × 7 × 13 =
546
composite factor = 2 × 13 × 23 =
598
composite factor = 3 × 13 × 19 =
741
composite factor = 2 × 3 × 7 × 19 =
798
composite factor = 2 × 19 × 23 =
874
composite factor = 3 × 13 × 23 =
897
composite factor = 2 × 3 × 7 × 23 =
966
composite factor = 3 × 19 × 23 =
1,311
composite factor = 2 × 3 × 13 × 19 =
1,482
composite factor = 7 × 13 × 19 =
1,729
composite factor = 2 × 3 × 13 × 23 =
1,794
composite factor = 7 × 13 × 23 =
2,093
composite factor = 2 × 3 × 19 × 23 =
2,622
composite factor = 7 × 19 × 23 =
3,059
composite factor = 2 × 7 × 13 × 19 =
3,458
composite factor = 2 × 7 × 13 × 23 =
4,186
composite factor = 3 × 7 × 13 × 19 =
5,187
composite factor = 13 × 19 × 23 =
5,681
composite factor = 2 × 7 × 19 × 23 =
6,118
composite factor = 3 × 7 × 13 × 23 =
6,279
composite factor = 3 × 7 × 19 × 23 =
9,177
composite factor = 2 × 3 × 7 × 13 × 19 =
10,374
composite factor = 2 × 13 × 19 × 23 =
11,362
composite factor = 2 × 3 × 7 × 13 × 23 =
12,558
composite factor = 3 × 13 × 19 × 23 =
17,043
composite factor = 2 × 3 × 7 × 19 × 23 =
18,354
composite factor = 2 × 3 × 13 × 19 × 23 =
34,086
composite factor = 7 × 13 × 19 × 23 =
39,767
composite factor = 2 × 7 × 13 × 19 × 23 =
79,534
composite factor = 3 × 7 × 13 × 19 × 23 =
119,301
composite factor = 2 × 3 × 7 × 13 × 19 × 23 =
238,602
64 factors (divisors)
What times what is 238,602?
What number multiplied by what number equals 238,602?
All the combinations of any two natural numbers whose product equals 238,602.
1 × 238,602 = 238,602
2 × 119,301 = 238,602
3 × 79,534 = 238,602
6 × 39,767 = 238,602
7 × 34,086 = 238,602
13 × 18,354 = 238,602
14 × 17,043 = 238,602
19 × 12,558 = 238,602
21 × 11,362 = 238,602
23 × 10,374 = 238,602
26 × 9,177 = 238,602
38 × 6,279 = 238,602
39 × 6,118 = 238,602
42 × 5,681 = 238,602
46 × 5,187 = 238,602
57 × 4,186 = 238,602
69 × 3,458 = 238,602
78 × 3,059 = 238,602
91 × 2,622 = 238,602
114 × 2,093 = 238,602
133 × 1,794 = 238,602
138 × 1,729 = 238,602
161 × 1,482 = 238,602
182 × 1,311 = 238,602
247 × 966 = 238,602
266 × 897 = 238,602
273 × 874 = 238,602
299 × 798 = 238,602
322 × 741 = 238,602
399 × 598 = 238,602
437 × 546 = 238,602
483 × 494 = 238,602
32 unique multiplications The final answer:
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