State the standard formula

For any two positive integers $a$ and $b$, the product of the numbers is equal to the product of their Highest Common Factor (HCF) and Least Common Multiple (LCM).

$\text{Product} = \text{HCF} \times \text{LCM}$

Substitute the given values

Given that the HCF is $7$ and the LCM is $245$, substitute these values into the formula: $\text{Product} = 7 \times 245$.

$\text{Product} = 7 \times 245$

Calculate the final product

Multiply $7$ by $245$: $7 \times 200 = 1400$, $7 \times 40 = 280$, $7 \times 5 = 35$, summing them up gives $1400 + 280 + 35 = 1715$.

$1715$