25×21

The product of 25 and 21 is 525. This is a multiplication problem involving two integers, where 25 is multiplied by 21 to obtain the resulting value.

Multiplication is one of the four elementary arithmetic operations and represents repeated addition. In this case, multiplying 25 by 21 means adding 25 to itself 21 times, which can be expressed as 25 + 25 + 25 ... (repeated 21 times).

The calculation can be simplified using the distributive property: 25 × 21 = (20 + 5) × 21 = (20 × 21) + (5 × 21). Calculating each term separately, 20 × 21 equals 420, and 5 × 21 equals 105. Adding these results gives 420 + 105 = 525.

This product has various applications depending on the context, such as in calculations involving area, quantities, or units in real-world scenarios. For example, if there are 25 items in each of 21 containers, there are a total of 525 items.

In a broader mathematical context, 525 is an odd number, and its prime factorization is 3 × 5² × 7. It is also a composite number, meaning it has divisors other than 1 and itself.

Overall, 25 multiplied by 21 results in 525, a number commonly used in basic arithmetic and various practical calculations across different fields.