To find all the divisors of the number 49,764:
- 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 49,764:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
49,764 = 22 × 3 × 11 × 13 × 29
49,764 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 = (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 49,764
- 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 =
11
composite factor = 2
2 × 3 =
12
prime factor =
13
composite factor = 2 × 11 =
22
composite factor = 2 × 13 =
26
prime factor =
29
composite factor = 3 × 11 =
33
composite factor = 3 × 13 =
39
composite factor = 2
2 × 11 =
44
composite factor = 2
2 × 13 =
52
composite factor = 2 × 29 =
58
composite factor = 2 × 3 × 11 =
66
composite factor = 2 × 3 × 13 =
78
composite factor = 3 × 29 =
87
composite factor = 2
2 × 29 =
116
composite factor = 2
2 × 3 × 11 =
132
composite factor = 11 × 13 =
143
composite factor = 2
2 × 3 × 13 =
156
composite factor = 2 × 3 × 29 =
174
This list continues below...
... This list continues from above
composite factor = 2 × 11 × 13 =
286
composite factor = 11 × 29 =
319
composite factor = 2
2 × 3 × 29 =
348
composite factor = 13 × 29 =
377
composite factor = 3 × 11 × 13 =
429
composite factor = 2
2 × 11 × 13 =
572
composite factor = 2 × 11 × 29 =
638
composite factor = 2 × 13 × 29 =
754
composite factor = 2 × 3 × 11 × 13 =
858
composite factor = 3 × 11 × 29 =
957
composite factor = 3 × 13 × 29 =
1,131
composite factor = 2
2 × 11 × 29 =
1,276
composite factor = 2
2 × 13 × 29 =
1,508
composite factor = 2
2 × 3 × 11 × 13 =
1,716
composite factor = 2 × 3 × 11 × 29 =
1,914
composite factor = 2 × 3 × 13 × 29 =
2,262
composite factor = 2
2 × 3 × 11 × 29 =
3,828
composite factor = 11 × 13 × 29 =
4,147
composite factor = 2
2 × 3 × 13 × 29 =
4,524
composite factor = 2 × 11 × 13 × 29 =
8,294
composite factor = 3 × 11 × 13 × 29 =
12,441
composite factor = 2
2 × 11 × 13 × 29 =
16,588
composite factor = 2 × 3 × 11 × 13 × 29 =
24,882
composite factor = 2
2 × 3 × 11 × 13 × 29 =
49,764
48 factors (divisors)
What times what is 49,764?
What number multiplied by what number equals 49,764?
All the combinations of any two natural numbers whose product equals 49,764.
1 × 49,764 = 49,764
2 × 24,882 = 49,764
3 × 16,588 = 49,764
4 × 12,441 = 49,764
6 × 8,294 = 49,764
11 × 4,524 = 49,764
12 × 4,147 = 49,764
13 × 3,828 = 49,764
22 × 2,262 = 49,764
26 × 1,914 = 49,764
29 × 1,716 = 49,764
33 × 1,508 = 49,764
39 × 1,276 = 49,764
44 × 1,131 = 49,764
52 × 957 = 49,764
58 × 858 = 49,764
66 × 754 = 49,764
78 × 638 = 49,764
87 × 572 = 49,764
116 × 429 = 49,764
132 × 377 = 49,764
143 × 348 = 49,764
156 × 319 = 49,764
174 × 286 = 49,764
24 unique multiplications The final answer:
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