To find all the divisors of the number 269,136:
- 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 269,136:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
269,136 = 24 × 33 × 7 × 89
269,136 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 = (4 + 1) × (3 + 1) × (1 + 1) × (1 + 1) = 5 × 4 × 2 × 2 = 80
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 269,136
- 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
2 =
4
composite factor = 2 × 3 =
6
prime factor =
7
composite factor = 2
3 =
8
composite factor = 3
2 =
9
composite factor = 2
2 × 3 =
12
composite factor = 2 × 7 =
14
composite factor = 2
4 =
16
composite factor = 2 × 3
2 =
18
composite factor = 3 × 7 =
21
composite factor = 2
3 × 3 =
24
composite factor = 3
3 =
27
composite factor = 2
2 × 7 =
28
composite factor = 2
2 × 3
2 =
36
composite factor = 2 × 3 × 7 =
42
composite factor = 2
4 × 3 =
48
composite factor = 2 × 3
3 =
54
composite factor = 2
3 × 7 =
56
composite factor = 3
2 × 7 =
63
composite factor = 2
3 × 3
2 =
72
composite factor = 2
2 × 3 × 7 =
84
prime factor =
89
composite factor = 2
2 × 3
3 =
108
composite factor = 2
4 × 7 =
112
composite factor = 2 × 3
2 × 7 =
126
composite factor = 2
4 × 3
2 =
144
composite factor = 2
3 × 3 × 7 =
168
composite factor = 2 × 89 =
178
composite factor = 3
3 × 7 =
189
composite factor = 2
3 × 3
3 =
216
composite factor = 2
2 × 3
2 × 7 =
252
composite factor = 3 × 89 =
267
composite factor = 2
4 × 3 × 7 =
336
composite factor = 2
2 × 89 =
356
composite factor = 2 × 3
3 × 7 =
378
composite factor = 2
4 × 3
3 =
432
composite factor = 2
3 × 3
2 × 7 =
504
This list continues below...
... This list continues from above
composite factor = 2 × 3 × 89 =
534
composite factor = 7 × 89 =
623
composite factor = 2
3 × 89 =
712
composite factor = 2
2 × 3
3 × 7 =
756
composite factor = 3
2 × 89 =
801
composite factor = 2
4 × 3
2 × 7 =
1,008
composite factor = 2
2 × 3 × 89 =
1,068
composite factor = 2 × 7 × 89 =
1,246
composite factor = 2
4 × 89 =
1,424
composite factor = 2
3 × 3
3 × 7 =
1,512
composite factor = 2 × 3
2 × 89 =
1,602
composite factor = 3 × 7 × 89 =
1,869
composite factor = 2
3 × 3 × 89 =
2,136
composite factor = 3
3 × 89 =
2,403
composite factor = 2
2 × 7 × 89 =
2,492
composite factor = 2
4 × 3
3 × 7 =
3,024
composite factor = 2
2 × 3
2 × 89 =
3,204
composite factor = 2 × 3 × 7 × 89 =
3,738
composite factor = 2
4 × 3 × 89 =
4,272
composite factor = 2 × 3
3 × 89 =
4,806
composite factor = 2
3 × 7 × 89 =
4,984
composite factor = 3
2 × 7 × 89 =
5,607
composite factor = 2
3 × 3
2 × 89 =
6,408
composite factor = 2
2 × 3 × 7 × 89 =
7,476
composite factor = 2
2 × 3
3 × 89 =
9,612
composite factor = 2
4 × 7 × 89 =
9,968
composite factor = 2 × 3
2 × 7 × 89 =
11,214
composite factor = 2
4 × 3
2 × 89 =
12,816
composite factor = 2
3 × 3 × 7 × 89 =
14,952
composite factor = 3
3 × 7 × 89 =
16,821
composite factor = 2
3 × 3
3 × 89 =
19,224
composite factor = 2
2 × 3
2 × 7 × 89 =
22,428
composite factor = 2
4 × 3 × 7 × 89 =
29,904
composite factor = 2 × 3
3 × 7 × 89 =
33,642
composite factor = 2
4 × 3
3 × 89 =
38,448
composite factor = 2
3 × 3
2 × 7 × 89 =
44,856
composite factor = 2
2 × 3
3 × 7 × 89 =
67,284
composite factor = 2
4 × 3
2 × 7 × 89 =
89,712
composite factor = 2
3 × 3
3 × 7 × 89 =
134,568
composite factor = 2
4 × 3
3 × 7 × 89 =
269,136
80 factors (divisors)
What times what is 269,136?
What number multiplied by what number equals 269,136?
All the combinations of any two natural numbers whose product equals 269,136.
1 × 269,136 = 269,136
2 × 134,568 = 269,136
3 × 89,712 = 269,136
4 × 67,284 = 269,136
6 × 44,856 = 269,136
7 × 38,448 = 269,136
8 × 33,642 = 269,136
9 × 29,904 = 269,136
12 × 22,428 = 269,136
14 × 19,224 = 269,136
16 × 16,821 = 269,136
18 × 14,952 = 269,136
21 × 12,816 = 269,136
24 × 11,214 = 269,136
27 × 9,968 = 269,136
28 × 9,612 = 269,136
36 × 7,476 = 269,136
42 × 6,408 = 269,136
48 × 5,607 = 269,136
54 × 4,984 = 269,136
56 × 4,806 = 269,136
63 × 4,272 = 269,136
72 × 3,738 = 269,136
84 × 3,204 = 269,136
89 × 3,024 = 269,136
108 × 2,492 = 269,136
112 × 2,403 = 269,136
126 × 2,136 = 269,136
144 × 1,869 = 269,136
168 × 1,602 = 269,136
178 × 1,512 = 269,136
189 × 1,424 = 269,136
216 × 1,246 = 269,136
252 × 1,068 = 269,136
267 × 1,008 = 269,136
336 × 801 = 269,136
356 × 756 = 269,136
378 × 712 = 269,136
432 × 623 = 269,136
504 × 534 = 269,136
40 unique multiplications The final answer:
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